Data/hora: 09/06/2024 11:33:34

Provedor de dados: | Acta Scientiarum: Agronomy
País: | Brazil
Título: | Karyotypic characterization of Capsicum sp. accessions
Autores: | Souza, Willame Rodrigues do Nascimento; Almeida, Angela Celis de; Carvalho, Reginaldo de; Ferreira, Regina Lúcia; Peron, Ana Paula.
Data: | 2015-05-04
Ano: | 2015
Palavras-chave: | CITOGENÉTICA pepper; Cytogenetics; Genebank; Morphometry CITOGENÉTICA DE CULTIVARES DE INTERESSE ECONÔMICO.
Resumo: | This study aimed to determine the chromosome number and the karyotype of Capsicum annuum, Capsicum chinense, Capsicum frutencens and Capsicum baccatum accessions in the active Capsicum sp. genebank at the Federal University of Piauí (BGC-UFPI). These species have great economic importance throughout the world, and their cytogenetic characterization can inform taxonomy and lead to improvement in the genus. Karyotypes were obtained from the rootlet meristems of the studied accessions using the squash method and Giemsa staining. The chromosome number 2n=2x=24 was verified for each of the four species. Chromosomal polymorphisms were observed for the C. frutencens accession BGC 37, which presented 12 pairs of metacentric chromosomes instead of 11 pairs of metacentric chromosomes and 1 submetacentric chromosome pair present in other accessions. In the accessions BGC 01 and BGC 37, secondary constrictions were observed in the 1 and 12 as well as in the 6 and 11 homologs, respectively. The karyotypes of the studied species were asymmetrical among themselves. The results obtained in this study confirm the high genetic diversity previously described in the literature for this genus.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19485

10.4025/actasciagron.v37i2.19485

Editor: | Universidade Estadual de Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19485/pdf_63

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5512

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5513

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5514

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5515

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5516

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/19485/5517

Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; v. 37, n. 2 (2015); 147-153

Acta Scientiarum. Agronomy; v. 37, n. 2 (2015); 147-153

1807-8621

1679-9275